Polypropylene resin is colorless cylindrical particles, non-toxic, tasteless, and its density is 0.90-0.91g/cm3. PP is relatively hard in nature and has the characteristics of good elongation, electrical insulation, good chemical stability, and good processing performance. Therefore, polypropylene PP resin can be widely used in the production of fiber products such as clothing and blankets, medical equipment, automobiles, bicycles, parts, pipes, chemical containers, etc., as well as food and drug packaging.